What perspective maintains that generalized anxiety disorder develops as a result of exposure to threatening environments?

How will technology impact medicine in the future?

Which conditions need to be in balance for cells to function? check all that apply. blood sugar food intake body water body temperature body mass

Which is an advantage of having memory cells when a pathogen is encountered for a second time. a) the memory cells are what proliferate into clones of cells in response to the binding of an antigen. b) memory cells are vital to the primary immune response in that they immediately recognize pathogens even at the first encounter. c) memory cells are essentially effector cells that are short lived and attack antigens even without having a receptor specific to that antigen. d) it ensures that more lymphocytes with a receptor specific to a particular antigen will be present than in a host that had never encountered that pathogen.